Home / 85,279.22-117,679.80-47,036.49

Finding the Fourth Proportional to 85,279.22, 117,679.80 and 47,036.49

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Solution

The fourth proportional to 85,279.22, 117,679.80 and 47,036.49 is: 64,907.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,279.22 : 117,679.80 = 47,036.49 : x
  2. Step 2: Convert to fraction form
    85,279.22/117,679.80 = 47,036.49/x
  3. Step 3: Cross multiply
    85,279.22x = 117,679.80 × 47,036.49
  4. Step 4: Simplify right side
    85,279.22x = 5,535,244,735.90
  5. Step 5: Solve for x
    x = 5,535,244,735.90/85,279.22
  6. Step 6: Final answer
    x = 64,907.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.